US 2006/0068263 A1 · Sealing structure for polymer electrolyte fuel cell

Abstract

The present invention relates to a sealing structure for polymer electrolyte fuel cell, which comprises a bipolar plate with sealing groove to be filled with rubber using a dispenser, and a gasket interposed between the bipolar plate and a membrane electrode assembly. That is, according to the present invention, the thickness deviation in a gasket can be softened by interposing a gasket between a rubber ands a membrane electrode assembly after filling rubber in a sealing groove formed on a bipolar plate using a dispenser. Also, nonuniform stress distribution can be resolved because a gasket covers with a pressure despite the height deviation of rubber, and a stress is not directly transmitted to a membrane electrode assembly and dispersed by a gasket despite nonuniform stress distribution.

Claims9

Dependent claims

A sealing structure for polymer electrolyte fuel cell comprising:

a bipolar plate with sealing groove to be filled with rubber using a dispenser;
and
a gasket interposed between said bipolar plate and a membrane electrode assembly.

Dependencies are inferred from the claim text.

Facts

Application

10/542,642Filed 23 Jun 2003

Priority

KR 10-2003-00352412 Jun 2003

Published

30 Mar 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01M 8/0284
Sealing means characterised by their material: organic resins; Organic polymers
H01M 8/0221
Non-porous and characterised by the material: organic resins; Organic polymers
H01M 8/0282
Sealing means characterised by their material: inorganic material
H01M 8/0263
Characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant: having meandering or serpentine paths

Sealing structure for polymer electrolyte fuel cell

Life of this patent

Sealing structure for polymer electrolyte fuel cell

Life of this patent

Abstract

Claims9